# Network transceiver module Cisco QSFP-40G-SR4-S

**URL:** https://aio.lv/en/product--cisco-qsfp-40g-sr4-s--681989
**Data updated:** 2025-12-28 21:33 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** Cisco
**Manufacturer code:** QSFP-40G-SR4-S=
**EAN:** 0882658745416
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 552.99 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 1 283.46 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cisco-qsfp-40g-sr4-s--681989

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The Cisco QSFP-40G-SR4-S is a fiber optic network transceiver module with a maximum data transfer rate of 40000 Mbit/s at 850 nm. It features a QSFP interface and is MSA certified. This module is ideal for high-speed data communication and offers reliable performance for data centers and enterprise networks.

## Long description

The Cisco QSFP-40G-SR4-S is a 40GBASE-SR4 QSFP fiber optic transceiver designed for short-reach, high-bandwidth links over multimode fiber. It operates at 850 nm with a maximum data rate of 40,000 Mbit/s and supports parallel 12-fiber MPO/MTP connections, providing interoperability with IEEE-compliant 40GBase-SR4 modules.
Advantages
The module supports link lengths of up to 100 meters on OM3 and 150 meters on OM4 multimode fiber, offers a QSFP form factor for compact port density, and is MSA-certified for broad compatibility in data center and enterprise network environments. Its parallel MPO/MTP termination simplifies cabling for 40G links.
Suitable for
High-speed data center uplinks and aggregation
40G interconnects between switches and routers
Enterprise backbone connections over multimode fiber
Short-reach parallel optical links using MPO/MTP
Key specifications
Model: Cisco QSFP-40G-SR4-S
Data rate: 40,000 Mbit/s
Wavelength: 850 nm
Fiber type: Multimode (OM3 / OM4)
Maximum reach: 100 m (OM3), 150 m (OM4)
Connector: MPO/MTP (12-fiber parallel)
Form factor: QSFP
Certification: MSA compliant, IEEE interoperability
How to use
Install the QSFP-40G-SR4-S into a compatible QSFP slot on a switch or router, and connect the 12-fiber MPO/MTP patch cable to the module. Ensure the fiber type (OM3 or OM4) matches the desired link distance and that cable polarity is correct for parallel 40GBase-SR4 operation. Verify link status and speed via the host device's interface after physical installation.
Usage recommendations
Use OM4 fiber when longer reach (up to 150 m) is required and follow manufacturer guidelines for MPO/MTP cleaning and handling to maintain optical performance. Confirm host device firmware and compatibility for IEEE-compliant 40GBase-SR4 modules before deployment.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | QSFP |
| Maximum data transfer rate | 40000 Mbit/s |
| Networking standards | IEEE 802.3ba |
| Auto MDI/MDI-X | Yes |
| Wavelength | 850 nm |
| Fiber optic connector | MPO |
| Maximum transfer distance | 150 m |
| Fiber cable diameters supported (core/cladding) | 50/125 |
| Multi-mode fiber (MMF) supported | Yes |
| SFP transceiver standard | SR |

### Network

| Feature | Value |
|---|---|
| SFP transceiver type | Fiber optic |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 85369010 |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 10 - 80 |
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | 0 - 70 |
| Storage relative humidity (H-H) | 10 - 85 |

### Certificates

| Feature | Value |
|---|---|
| Certification | MSA |

### Features

| Feature | Value |
|---|---|
| Hot-Plug support | Yes |

### Packaging data

| Feature | Value |
|---|---|
| Number of products included | 1 pc(s) |

## FAQ

### How much does the Network transceiver module Cisco QSFP-40G-SR4-S cost, and is it available for purchase?

The price is 1,552.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 23 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Cisco products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Cisco service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: interface type, maximum data transfer rate, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

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